Gage-cock.



E. F. SHALLOW.

GAGE 000K.

APPLIGATION FILED OUT, 18, 1910.

Patented Dec.20, 1910.

EDWARD Farmers SHALLOW, F PinLAmiLPHIA, PENNSYLVANIA.

GAGE-COCK.

Specification of Letters Patent. Patented Dec. 20, 1910.

Application filed October 18, 1910. Serial No. 587,771. I

To all whom it may concern.

Be it known that I, EDWARD FRANoIs SHALLow,.a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented new and useful Improvements inGage-Cocks, of which the following is a specification. The presentinvention has reference to improvements in gage cocks, and moreespecially with relation to the testing valves ordinarily employed inconnection with such devices. the improvements in question comprehendinggenerally a special construction for valves of that type, and aparticular form of controlling means for the same.

A structural embodiment of the invention isillustrated in theaccompanying drawing, wherein Figure 1 is a perspective view of theimproved gage cock. Fig. 2 is a longitudinal vertical sectional view.Fig. 3 is a plan .view.

In said drawing, 1 designates the case of the cock,- and .2 the threadedstem formed integral with thecase and adapted to screw into the boilerhead at the proper point.

- Through the stem 2 and the adjacent arm 3 of thecase is formed alongitudinal bore 4 which communicates by way of a channel,

5 of reduced diameter with an internally threaded bore 6 alining withthe first bore and formed through the opposite arm 7 of the case. Bore 6also communicates, ad-

acent its inner endfiwith a second channel 8 that opens, in turn, intothe valve seat 9 formed in the neck portion 10 of the.case, whichportion'is provided with a spout 11 Whose-bore opens into said seatthrough a .port 12 formed in the seat wall, as shown in dotted lines inFig. 2.

Bore 6 is designed to receive the threaded stem of a rotatable valve'13provided with an operating handle 14 of any suitable type. Said stempasses through an opening formed in i1 cap 15 threaded on arm ,7, andits inner cm the point of intersection between bore 6 and channel'5. Thearrangement is such, therefore, that communication between the boilerand the channel 8 leading to the spout 11 may be opened or closed byturning the controlling valve 13inthe proper direction. This valve,however, is designed to remain is reduced, as indicated by the numeral116, so as to enable it to fit seat 17 formed at 'boiler,

in open position under ordinary circumstances. The outer. end of bore 6may be suitably packed, as will be understood.

The bore which constitutes and produces seat 9 receives the stem of themain or test ing valve 18. v The outer portion of this stem is slightlysteep spiral threads 19 which engage the corresponding threads formed inthe inner wall of a collar 20 fitted on the upper end of the case neck10 and ofv a threaded cap 2l. cap bears upon an out-turned flange 22formed on said collar,

held in place by means tight in any suitable manner.. The lower end ofthe stem of valve 18 is normally held bearing atone end against adepending stud 24 carried by the valve handle lever 25, and" engaged atthe other end withthe upstanding end of a pin 26 which projectslaterally enlarged, and is formed with.

The top wall of said the joint be .ween the latter andthe neck beingren'de ed fluid from a lateral arm 27 formed integral with the bodyportion of the case. central portion of this spring vertical pin 28formed upon arm 27. The

The coiled embraces a handle lever above referred to is attachedby meansof a set-screw 29 or the like to the upper end of the valve stem 18, andis designed for connection to an operating device (not shown) of theusual or any preferred type, for which purpose its outer end is providedwith anaperture 30.,

In operation, the controlling valve 13 is maintained normally in openposition, while the testing valve 18' is held in closed posipositionshown in dotted lines in Fig. 3, against the pressufe of its controllingspring,

whereupon valve 18 will be turned and will rise to an extent suflicient'to uncover port 12,

thereby enabling the water to flow out, if its level be high enough,through the port the-handle lever is shifted into the tion by thetorsion spring, thus opening When a is y ing valve, and that thecontrolling spring forthe latter valve is located exteriorly of thecase. By utilizing the controlling valve, it is possible to entirely cutoff communica tion between the boiler and the branch 8 leading to thevalve seat 9, so as to permit said seat to be ground or otherwiserenewed,

without entailing the detachment of the I and also to permit bewithdrawn and device from the boiler, the testing valve itself toinspected, and replaced if necessary. By

locating thespring exteriorly of the case, it is enabled to exert itsfull pressure upon the handle lever and, at the sametime, is not exposedto the action of the water. The arrangement of the spring, moreover, issuch that it is perfectly supported and hel against displacement.

I claim as my invention:

1. In a gage cock, ahollow case provided with an interiorlylocated.valve seat, and with an exteriorlylocated arm formed with a lateralprojection; of a valve rotatably fitted in said seat; a handle leversecured to said valve and provided with a stud; and a torsion springlocated exteriorly of said case and-having one level, as will be underthe combination, with 'end thereof engaged with said projection,

and the other arm with said stud.

' ,2. In a gage cook, the combination, with l a hollow case providedwith an interiorlyl located valve seat, and'with an exteriorlylocatedarm formed with a pair of lateral pins; of a valve rotatably fitted insaid seat; a handle lever secured to said valve and provided with astud; and a torsion spring located exteriorly of said case and formedwith a coiled central portion embracing one of said pins, said springhaving one en l thereof engaged with the other pin, and the other endwith said stud.

8. In a gage cock, the combination, with a hollow case provided with aninteriorlylocated valve seat, and with a spout having t its bore openindirectly through one wall of said seat; 0 a valve rotatably fitted in Isaid seat and formed with steep spiral threads; a tubular memberprovided upon said case and formed with lnternal threads co-acting withthe'first named threads, for causing a'quick endwise movement of saidvalve when rotated; a handle lever secured to said valve; and aneXteriorly-lo cated torsion spring connected at one end with said case,and at the other end to said lever, for normally holding said valve inclosed position.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

EDWARD renters SHALLOW.

Witnesses:

JOHN L. BURNS, ETHEL F. GERITS.

